| 探地雷达超宽带背腔蝶形天线设计与实现 |
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| 引用本文： | 郭晨,刘策,张安学. 探地雷达超宽带背腔蝶形天线设计与实现[J]. 电波科学学报, 2010, 25(2) |
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| 作者姓名： | 郭晨 刘策 张安学 |
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| 作者单位： | 西安交通大学微波与光通信研究所,陕西西安,710049;Subsurface Sensing Lab,University of Houston,Texas,United States |
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| 基金项目： | 国家自然科学基金资助项目(60501004) |
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| 摘 要： | 设计实现了一种中心频率为400 MHz的吸波材料填充式背腔蝶形天线,并将此天线应用于超宽带探地雷达系统,组装完成了一套400 MHz无线控制探地雷达系统样机。背腔式设计的探地雷达收发天线可以克服传统蝶形天线在H面全向辐射所带来的缺点,从而提高雷达系统的信噪比及收发天线之间的隔离度。对背腔蝶形天线的设计进行了规律性研究,总结了吸波材料填充式背腔蝶形天线系统在工程化实现时的设计经验。实际路测数据验证了所设计背腔天线在此套探地雷达系统中性能表现稳定良好。
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| 关 键 词： | 超宽带(UWB) 探地雷达(GPR) 背腔 吸波材料 蝶形天线 |
Design and implement of an UWB bow-tie antenna with back-covity for ground penetrating radar |
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| GUO Chen LIU Richard CZHANG An-xue. Design and implement of an UWB bow-tie antenna with back-covity for ground penetrating radar[J]. Chinese Journal of Radio Science, 2010, 25(2) |
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| Authors: | GUO Chen LIU Richard CZHANG An-xue |
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| Affiliation: | GUO Chen1 LIU Richard C2ZHANG An-xue1(1.Institute of Microwave Communication,Xi'an Jiaotong University,Xi'an Shaanxi 710049,China,2.Subsurface Sensing Lab,University of Houston,Texas,United States) |
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| Abstract: | A shielded antenna system applying to ground-coupled GPR system working at 400 MHz center frequency is investigated theoretically and experimentally in this paper.The T/R antennas are bow-tie antenna designed with back-cavity which is employed to overcome those drawbacks caused by omni-directional radiation pattern of bow-tie antenna in H-plane,thus increase the SNR and improve the isolation between T and R antennas as well.The designed antenna is applied to a prototype GPR system.Tested data show the shiel... |
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| Keywords: | ultra-wideband(UWB) ground-penetrating radar(GPR) back-cavity absorber bow-tie |
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